Let's divide 19122712 by 621
We want to divide 19122712 by 621.

Going ahead to step 1:
When dividing 1 by 621, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 621

Moving on to step 2:
When dividing 19 by 621, we get 0 with a remainder of 19.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 19, we get 19.
Take the next digit (1) from the dividend and append it to 19, then repeat: 191 / 621

Moving on to step 3:
191 divided by 621 is 0 with a remainder of 191.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 191 leaves us with 191.
Take the next digit (2) from the dividend and append it to 191, then repeat: 1912 / 621

Advancing to step 4:
The number 621 fits into 1912 3 times, leaving a remainder of 49.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 1863 from 1912, we get 49.
Grab the next digit (2) from the dividend, add it to 49, then carry on: 492 / 621

On to step 5:
492 divided by 621 is 0 with a remainder of 492.
Write down 0 as next digit of the result. 
Result so far: 30.0
Deduct 0 from 492 and we're left with 492.
Bring next digit (7) of the dividend behind the 492 and repeat the process: 4927 / 621

Going ahead to step 6:
If we divide 4927 by 621, we get 7 and a remainder of 580.
Record the quotient 7 as the next digit in the result. 
Result so far: 307.0
Subtract 4347 from 4927 to get 580.
Bring next digit (1) of the dividend behind the 580 and repeat the process: 5801 / 621

Advancing to step 7:
621 can be fit into 5801 9 times, resulting in a remainder of 212.
The next digit of our result is 9. 
Result so far: 3079.0
If we take 5589 away from 5801, we end up with 212.
Fetch the next digit (2) from the dividend, attach it to 212 and continue: 2122 / 621

Let's proceed to step 8:
The number 621 fits into 2122 3 times, leaving a remainder of 259.
Put 3 as the next digit of the answer. 
Result so far: 30793.0
The remainder is 259 after subtracting 1863 from 2122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Going ahead to step 9:
2590 divided by 621 is 4 with a remainder of 106.
The next digit of our result is 4. 
Result so far: 30793.4
If we take 2484 away from 2590, we end up with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Going ahead to step 10:
If we divide 1060 by 621, we get 1 and a remainder of 439.
Use 1 as the next digit of our solution. 
Result so far: 30793.41
Deduct 621 from 1060 and we're left with 439.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4390, and continue the process.

Advancing to step 11:
4390 divided by 621 is 7 with a remainder of 43.
Use 7 as the next digit of our solution. 
Result so far: 30793.417
If we subtract 4347 from 4390, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 12:
621 goes into 430 0 times with a remainder of 430.
Use 0 as the next digit of our solution. 
Result so far: 30793.417
Subtract 0 from 430 to get 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

On to step 13:
When dividing 4300 by 621, we get 6 with a remainder of 574.
Write down 6 as next digit of the result. 
Result so far: 30793.41706
The remainder is 574 after subtracting 3726 from 4300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5740, and continue the process.

Advancing to step 14:
When dividing 5740 by 621, we get 9 with a remainder of 151.
Put 9 as the next digit of the answer. 
Result so far: 30793.417069
Subtract 5589 from 5740 to get 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Let's proceed to step 15:
The number 621 fits into 1510 2 times, leaving a remainder of 268.
Use 2 as the next digit of our solution. 
Result so far: 30793.4170692
Subtract 1242 from 1510 to get 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Advancing to step 16:
621 can be fit into 2680 4 times, resulting in a remainder of 196.
Put 4 as the next digit of the answer. 
Result so far: 30793.41706924
If we subtract 2484 from 2680, we get 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Our division results in 30793.41706924 with a remaining 1.96e-07.